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Antique Questions Forum / Re: From The Old Barn - Whatzit?
« on: July 23, 2016, 06:11:27 pm »
Jacon4 - I agree. We’ve beat this to death.
Cogar - 3/4-16 is classed as NF or National Fine or UNF (Unified Nat’l Fine) depending on thread depth etc etc. 3/4 dia NC has 10 thread/inch.
I totally agree this is not a paint sprayer part even heavy duty.
Jlsherf- The part does not reciprocate - it is screwed together.
With the head in place and the lock nut tightened it is basically one solid non moving piece.
There is no axial passage for any fluid to flow thru. It is threaded for the shaft which, when fully screwed in, is nearly even with the base leaving just enough clearance for the screw driver shown. Those little holes are for inserting a rod for easier/fsster turning that fine thread.
The pic shows the base end more clearly.
Your linked site showed no spryer pump parts - just whole units.
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I’ll stick to the conclusion that it is a centering device which employs various size heads depending on the size of what’s being centered.
Bye.
Cogar - 3/4-16 is classed as NF or National Fine or UNF (Unified Nat’l Fine) depending on thread depth etc etc. 3/4 dia NC has 10 thread/inch.
I totally agree this is not a paint sprayer part even heavy duty.
Jlsherf- The part does not reciprocate - it is screwed together.
With the head in place and the lock nut tightened it is basically one solid non moving piece.
There is no axial passage for any fluid to flow thru. It is threaded for the shaft which, when fully screwed in, is nearly even with the base leaving just enough clearance for the screw driver shown. Those little holes are for inserting a rod for easier/fsster turning that fine thread.
The pic shows the base end more clearly.
Your linked site showed no spryer pump parts - just whole units.
=====
I’ll stick to the conclusion that it is a centering device which employs various size heads depending on the size of what’s being centered.
Bye.